Question about Bosch Worcester Spark Electrode 87161421190 Fits 230/240 Rsf Highflow 400 Rsf

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Whats the code when hf flashes on a worcester boiler

Hf flashes when heat rises

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Posted on Jan 02, 2017

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SOURCE: Worcester Bosch Highflow 400 Boiler - no hot water or heating

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Although we don't currently offer live technical support online, our Technical Support department will be able to help. Their number is 0844 892 3366 - they're open 6 days a week and on average answer calls within 20 second. If you want to know more about our Technical Support department visit our website

http://www.worcester-bosch.co.uk/homeowner/customer-service/customer-technical-support

We look forward to helping you

Posted on May 17, 2010

  • 17 Answers

SOURCE: my worcester bosch 24i junior pressure keeps

hi there

when you top up,do you vent the pump inside the boiler? there is a bleed nipple on the top of it.your pressure should be around 1.5/1.7 bar when cold.lose that amount of pressure would say you have a serious leak,check around all rad pipes and look for damp patches.

hope this helps

Posted on Dec 22, 2010

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1 Answer

Worcester Boiler Greenstar 15Ri - The blue neon light is flashing - what does this mean?


http://www.worcester-bosch.co.uk/homeowner/literature/gas-boiler-literature/greenstar-15ri-literature. Hope this helps :)

Sep 19, 2014 | Water Heaters

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Ideal icos 18 fault code HF


According to pages 47-50 of the install guide, section on FAULT FINDING, the alternating H and F indicates Flame Detection Short Circuit Error. Actions are: Remove flame detection electrode terminal from PCB. Test for continuity between 2 terminal pins? If YES, replace flame detection electrode. If NO, replace PCB. If you need more diagrams and full guide go to http://idealboilers.com/installer/wp-content/uploads/sites/2/2013/08/203318_inst.pdf

May 19, 2014 | Water Heaters

1 Answer

Thanks for that mike, it is a worcester bosch combi 24cdi heating and water can stay on for an hour then everything goes off and the red light flashes. it will come straight back on when reset, but then...


Check the pressure reading, should be about 1 bar when system is cold. Various models in the range of 24cdi. If you do not have a manual, go to,
http://www.centralheating.co.uk/Boiler-Manuals/worcester-bosch-boiler-manuals/worcester-bosch-discontinued-boiler-manuals.
Get the manual for your unit, to wards the end of install manual it has a fault finder, Also has a basic 1 in the user manual. Number of flashes how fast the light flashes which one flashing can all mean different, So get the manual and check, Some parts are easy to fix, as long as you do not touch the gas side the rest is plumbing. Come back if needed.

Mar 05, 2013 | Water Heaters

1 Answer

I have a worcester 28cdi combi boiler. The pressure keeps going up yo 3 bar when the heating is on, and venting of via the pressure valve. When the boiler cools down the pressure drops to zero, and I have...


Your boiler has an expansion vessel that is like a bladder full of air. Yours has lost it's air pressure. Check your manual for this vessel and where the valve is to re-inflate it and what pressure to inflate to. It should have a simple tyre valve, pump it back up (usually to about 1 bar after releasing the water pressure) and should be all fixed. If you can't re-inflate the bladder is holed and the expansion vessel will need replacing.

Dec 05, 2010 | Water Heaters

1 Answer

Worcester Bosch Highflow 400 Boiler - no hot water or heating


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Hi, this is Worcester, Bosch Group

Although we don't currently offer live technical support online, our Technical Support department will be able to help. Their number is 0844 892 3366 - they're open 6 days a week and on average answer calls within 20 second. If you want to know more about our Technical Support department visit our website

http://www.worcester-bosch.co.uk/homeowner/customer-service/customer-technical-support

We look forward to helping you

May 13, 2010 | Bosch Water Heaters

1 Answer

Flashing red light on Worcester 24i junior combi boiler


Pressure is ok? at 1 bar or above
I think on this one there should be a reset button [red] on the left hand top of the casing - or lower the control panel [ phillips screw on each side] and the button is on the left of the base plate. Press this and try the heating.or hot tap
P.S. if you're on a prepayment meter check you have gas.

Nov 08, 2009 | Water Heaters

1 Answer

Worcester 24i combi when in shower hot water flicks on and off can hear gas igniting and extinguishing


This is lack of water flow through the diverter valve.

First have you got a good flow from any cold tap? If yes then see below

If I remember there is a pipe carrying cold mains crossing the lower front of the boiler with an in line filter usually clogged. Remove clean & replace
check also any filter in rising mains to boiler

another cause is the diverter valve itself - diaphram inside may be punctured/split

Aug 06, 2009 | Ultra Max Takagi Flash TH-1 Ultra High...

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I have a worcester greenstart 30 cdi boiler that is 2 months old and it has been very noisey this morning and now has come up woith error code ea, we have no heating or hot water - the reset button is...


Not the best day for this to happen.

Check the system pressure and top up if necessary - but after that the best advice is to get the people who fitted it for you to come out and sort it - These Worcester combis usually have a 5 year parts warranty and with a boiler that's just a few weeks old, you oughyt to be able to get the labour for nothing as well. It would be a shame to throw those benefits away by tinkering yourself.

A.

Jan 01, 2009 | Water Heaters

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